Sansa users who are not interested in curating the ID3 tags of their mp3 files could try using FOLDER mode to play their “drag and drop” files. This method may upset some users when they discover the player does not re-sort the folders and files.
FOLDER mode plays according to the order the folders and files are first copied into the player.
See this website for an explanation:
Maybe take a look at the website for Mp3tag software. A really excellent way to curate ID3 tags of most types of audio files.
Sansa MUSIC mode requires decent editing of the ID3 tags for best enjoyment of the player